430 entries under adjective topic. ×

6
glassy(expressionless, especially)
6
vapid(slight, value, small, silly)
5
dishonest(ineffective, fruitless, character trait)
5
abortive(useless, trivial, insufficient, worthless)
5
absent(verb, leave, usual, deficient)
5
asinine
5
deadpan(ineffective, fruitless)
5
disburden(verb, clear, remove, reduce)
5
flimsy(slight, detail, false, negative)
5
groundless(reason, negative, worthless, unwarranted)
5
ignorant(slight, detail, stupid, trivial)
5
insipid(ineffective, fruitless)
5
insubstantial(slight, value, negative, insignificant)
5
lone(down, solitary, alone, lost)
5
nugatory(slight, poor, base, value)
5
null(unsubstantial, nonexistent, unsubstantiality)
5
peckish(thin, faint, pale, hungry)
5
petty(ineffective, fruitless)
5
profitless(poor, base, inferior, insignificant)
5
starving(gross, avid, hungry, voracious)
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APASmart Define. (2015). empty thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/empty/thesaurus/synonyms
ChicagoSmart Define. 2015. "empty thesaurus" https://smartdefine.org/empty/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, empty thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/empty/thesaurus/synonyms>.
MLASmart Define. "empty thesaurus" 1 October 2015. Web. 22 September 2026. <https://smartdefine.org/empty/thesaurus/synonyms>